WO2019141906A1 - Mill - Google Patents
Mill Download PDFInfo
- Publication number
- WO2019141906A1 WO2019141906A1 PCT/FI2019/050034 FI2019050034W WO2019141906A1 WO 2019141906 A1 WO2019141906 A1 WO 2019141906A1 FI 2019050034 W FI2019050034 W FI 2019050034W WO 2019141906 A1 WO2019141906 A1 WO 2019141906A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mill
- outer rotor
- crushing
- rotor
- steel slag
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/22—Disintegrating by mills having rotary beater elements ; Hammer mills with intermeshing pins ; Pin Disk Mills
- B02C13/24—Disintegrating by mills having rotary beater elements ; Hammer mills with intermeshing pins ; Pin Disk Mills arranged around a vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/20—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors
- B02C13/205—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors arranged concentrically
Definitions
- the object of the invention is a mill, the purpose of which is to crush steel slag so that metal and slags and can be separated from each other, and which mill compris es a casing, cover and bottom, and there is a crushing element inside of the mill by means of which steel slag can be crushed.
- the mill in accordance with the invention is characterized in that the crushing ele ment comprises two rotors rotating opposite to each other; inner rotor and outer ro tor, and that the material can be fed into the center of the inner rotor, from which it is thrown to the outer rotor in consequence of the centrifugal force, and further be- low, outside through outlet apertures on the bottom.
- the aim of the mill is to crush steel slag so that metal and slags can be separated from each other.
- the mill comprises a casing 1, cover 2 and bottom 3.
- the crushing element comprises two rotors rotating opposite to each other; inner ro tor 4 and outer rotor 5.
- Material 6 can be fed into the center of the inner rotor 4, from which it is thrown to the outer rotor 5 in consequence of the centrifugal force, and further below, outside through outlet apertures 7 on the bottom 3.
- the inner ro tor 4 comprises a frame plate 9, which rotates by means of a motor 8, on the top sur- face of which frame plate 9 there are radial crushing wings 10.
- the outer rotor 5 comprises a top frame plate 11, which rotates by means of a motor, on the circle of which top frame plate 11 there are crushing elements 12 pointing downwards.
- the outer rotor is connected to a further motor (not shown in the figure) by means of a tubular rotating axis 13 through which the material 6 to be crushed is to be fed in- side of the mill.
- the elements of the mill are produced from suitable steel material, which is strong and high-tensile.
- the invention is not limited to the example described above, but it may be varied within the scope of the claims presented below.
- the mill is thus suited for crushing also other slags, such as combustion ash.
- the separation of metals from the crushed mass can be carried out with methods known per se. Iron particles, for example, can be separated with magnetic separator, for example, and other non-magnetic metals with prior known chemical methods, for example.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention relates to a mill aimed to crush steel slag so that metal and slags can be separated from each other. The mill comprises a casing (1), cover (2) and bottom (3), and there is a crushing element (4, 5) inside of the mill by means of which steel slag is to be crushed. The crushing element comprises two rotors rotating opposite to each other; inner rotor (4) and outer rotor (5). Material (6) is to be fed into the center of the inner rotor (4), from which it is thrown to the outer rotor (5) in consequence of the centrifugal force, and further below outside through the outlet apertures (7) on the bottom (3).
Description
Mill
The object of the invention is a mill, the purpose of which is to crush steel slag so that metal and slags and can be separated from each other, and which mill compris es a casing, cover and bottom, and there is a crushing element inside of the mill by means of which steel slag can be crushed.
All the mills known per se are single rotor mills, or they are provided with other crushing elements. With the aforementioned mills, however, a required impact ve locity, i.e. crushing velocity, is not reached, and they are not adequately suited for the materials mentioned above. The purpose of the invention is to eliminate the disadvantages mentioned above. The mill in accordance with the invention is characterized in that the crushing ele ment comprises two rotors rotating opposite to each other; inner rotor and outer ro tor, and that the material can be fed into the center of the inner rotor, from which it is thrown to the outer rotor in consequence of the centrifugal force, and further be- low, outside through outlet apertures on the bottom.
Various embodiments of the invention are disclosed in the dependent claims of the set of claims. The impact velocity even doubles with the invention, and additionally, the solution allows more powerful rotation speeds without material being stuck, be cause the counter circle is rotating. The invention is explained below with reference to the accompanying drawing, which presents a sectional view of the mill in accordance of the invention.
The aim of the mill is to crush steel slag so that metal and slags can be separated from each other. The mill comprises a casing 1, cover 2 and bottom 3. There is a crushing element inside of the mill by means of which steel slag can be crushed. The crushing element comprises two rotors rotating opposite to each other; inner ro tor 4 and outer rotor 5. Material 6 can be fed into the center of the inner rotor 4, from which it is thrown to the outer rotor 5 in consequence of the centrifugal force, and further below, outside through outlet apertures 7 on the bottom 3. The inner ro tor 4 comprises a frame plate 9, which rotates by means of a motor 8, on the top sur- face of which frame plate 9 there are radial crushing wings 10. The outer rotor 5 comprises a top frame plate 11, which rotates by means of a motor, on the circle of which top frame plate 11 there are crushing elements 12 pointing downwards. The outer rotor is connected to a further motor (not shown in the figure) by means of a tubular rotating axis 13 through which the material 6 to be crushed is to be fed in-
side of the mill. The elements of the mill are produced from suitable steel material, which is strong and high-tensile.
The invention is not limited to the example described above, but it may be varied within the scope of the claims presented below. Besides crushing steel slag, the mill is thus suited for crushing also other slags, such as combustion ash. The separation of metals from the crushed mass can be carried out with methods known per se. Iron particles, for example, can be separated with magnetic separator, for example, and other non-magnetic metals with prior known chemical methods, for example. On the circle, there can be two or more wings 10 and crushing elements 12, e.g. six, eight or even more.
Claims
1. A mill aimed to crush steel slag so that metal and slags and can be separated from each other, and which mill comprises a casing (1), cover (2) and bottom (3), and inside of the mill there is a crushing element (4, 5) by means of which steel slag is to be crushed, characterized in that the crushing element comprises two rotors rotating opposite to each other; inner rotor (4) and outer rotor (5), and that material (6) can be fed into the center of the inner rotor (4), from which it is thrown to the outer rotor (5) in consequence of the centrifugal force and further below, outside through the outlet apertures (7) on the bottom (3).
2. The mill according to the claim 1, characterized in that the inner rotor (4) comprises a frame plate (9) rotating by means of a motor (8), on the top surface of which frame plate (9) there are radial crushing wings (10).
3. The mill according to the claim 1 or 2, characterized in that the outer rotor (5) comprises a top frame plate (11) rotating by means of a motor, on the circle of which there are crushing elements (12) pointing downwards.
4. The mill according to the claim 1, 2 or 3, characterized in that the outer rotor (5) is connected to a further motor by means of a tubular rotating axis (13) through which the material (6) to be crushed is to be fed inside of the mill.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20180003 | 2018-01-18 | ||
FI20180003 | 2018-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019141906A1 true WO2019141906A1 (en) | 2019-07-25 |
Family
ID=67301336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI2019/050034 WO2019141906A1 (en) | 2018-01-18 | 2019-01-17 | Mill |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2019141906A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021089912A1 (en) * | 2019-11-04 | 2021-05-14 | Moviator Oy | Mill |
WO2022090620A1 (en) * | 2020-10-30 | 2022-05-05 | Maicon Engineering Oy | An impact crusher, an upper rotor and a hammer |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2919864A (en) * | 1956-12-27 | 1960-01-05 | Benjamin J Parmele | Centrifugal pulverizer |
NL1000111C2 (en) * | 1995-04-11 | 1996-10-14 | Johannes Petrus Andreas Joseph | Two-stage autogenous impact-type crusher |
RU2577630C1 (en) * | 2014-12-15 | 2016-03-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Белгородский государственный технологический университет им. В.Г. Шухова" | Disintegrator |
RU2633554C1 (en) * | 2016-12-07 | 2017-10-13 | федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный технологический университет им. В.Г. Шухова" | Disintegrator |
-
2019
- 2019-01-17 WO PCT/FI2019/050034 patent/WO2019141906A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2919864A (en) * | 1956-12-27 | 1960-01-05 | Benjamin J Parmele | Centrifugal pulverizer |
NL1000111C2 (en) * | 1995-04-11 | 1996-10-14 | Johannes Petrus Andreas Joseph | Two-stage autogenous impact-type crusher |
RU2577630C1 (en) * | 2014-12-15 | 2016-03-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Белгородский государственный технологический университет им. В.Г. Шухова" | Disintegrator |
RU2633554C1 (en) * | 2016-12-07 | 2017-10-13 | федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный технологический университет им. В.Г. Шухова" | Disintegrator |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021089912A1 (en) * | 2019-11-04 | 2021-05-14 | Moviator Oy | Mill |
EP4054766A4 (en) * | 2019-11-04 | 2023-12-27 | Moviator Oy | Mill |
WO2022090620A1 (en) * | 2020-10-30 | 2022-05-05 | Maicon Engineering Oy | An impact crusher, an upper rotor and a hammer |
WO2022090622A1 (en) * | 2020-10-30 | 2022-05-05 | Maicon Engineering Oy | An impact crusher and an upper rotor assembly |
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